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authorSøren Sandmann Pedersen <ssp@redhat.com>2013-07-27 01:56:10 -0400
committerSøren Sandmann Pedersen <ssp@redhat.com>2013-07-29 06:21:52 -0400
commitf77bc4893e2b6ea7987a3b315f5b8a2e4dad4045 (patch)
tree66101dea9020a42e48b4fba46dfc244ecc98ebb9
parentaaf3642458b49d35568207abae04f07f1f2a4d8b (diff)
dither
-rw-r--r--docs/dither.txt (renamed from docs/yuv-dither.txt)4
1 files changed, 3 insertions, 1 deletions
diff --git a/docs/yuv-dither.txt b/docs/dither.txt
index b47acbb9..19b3f1c7 100644
--- a/docs/yuv-dither.txt
+++ b/docs/dither.txt
@@ -33,7 +33,9 @@ Details:
* with the HVS function once again. Convolution is associative, so this is
* equivalent to filtering with the G convolved with itself. We will denote
* this new filter by U = G * G. Note that U(0) = rho and that U(a) =
- * U(-a) if G is symmetric.
+ * U(-a) if G is symmetric. FIXME: Is there an issue here with the sum
+ * being finite? In order to measure the error, the sum has to finite,
+ * but in order to convolve they have to be infinite.
*
* The array resulting from convolving A with U is denoted F:
*